CFP-5296
Lithium-ion batteries (LIBs) are widely used in various applications due to their high energy density. As electric mobility advances and large quantities of batteries are needed, it is anticipated that a significant stock of end-of-life (EOL) batteries will accumulate within the next decade [1]. The accumulation of this growing stock represents major environmental and economic […]
CFP-5294
Calendar aging plays a crucial role in various lithium-ion battery applications, especially in scenarios where active operation is mostly at low currents or only a few hours a day. Thus, calendar aging is a significant driver of cell degradation during the lifetime (10.3390/en14175220, 10.1109/EMCT.2017.8090361), and may contribute more than cycling to the cell’s aging (10.1016/j.ensm.2023.103147). […]
CFP-5301
The disassembly process is labour-intensive. Thus, automating this process makes it easier to expand recycling. The different pack architectures – cell to module, cell to pack and cell to chassis/car – force dismantling to be flexible or to focus on one architecture. However, only one type of pack architecture can then be dismantled. Ensuring high […]
CFP-5295
Calendar aging plays a crucial role in various lithium-ion battery applications, especially in scenarios where active operation is mostly at low currents or only a few hours a day. Thus, calendar aging is a significant driver of cell degradation during the lifetime (10.3390/en14175220, 10.1109/EMCT.2017.8090361), and may contribute more than cycling to the cell’s aging (10.1016/j.ensm.2023.103147). […]
CFP-5302
Today, test data for lithium-ion cells is widely available in public repositories. This article discusses testing conditions of open test data and compares them to the conditions of large-scale BESS in real applications. Coupling the information provided by these datasets and measurements from stationary storage connected to the grid, a data-based model to predict the […]
CFP-5281
When analysing vehicle data from field tests in real world situations, it can often be helpful to be able to show differences between vehicles. A direct comparison of the data is usually not possible in a meaningful way, as the differences between the vehicles are often small. Even if two vehicles were driven on identical […]
CFP-5300
The state of health (SoH) of lithium-ion cells is crucial for ensuring optimal performance in critical applications such as electric vehicles (EVs) and energy storage systems. This work presents a fast, non-invasive method for estimating SoH using Electrochemical Impedance Spectroscopy (EIS) and Equivalent Electrical Circuit (EEC) models. Unlike conventional methods requiring lengthy charge-discharge cycles, the […]
CFP-5293
Quality assurance in battery production In order for a lithium-ion battery to be competitive, it must be manufactured inexpensively, have a high energy density and last as long as possible. When manufacturing battery cells in millions of units, high quality is extremely important; because faulty production can, in extreme cases, lead to self-destruction and a […]
CFP-5297
Hochspannungsbatterien bestehen aus einem Netzwerk einzelner Batteriezellen, bei dem die Anzahl in Serie geschalteter Zellen sehr groß im Vergleich zur Anzahl parallel geschalteter Zellen ist (s>>p). Das Verständnis und die Beherrschung des Kurzschlussverhaltens solcher Systeme ist von entscheidender Bedeutung für das Design sicherer und effizienter Hochvolt-Batteriepack-Systeme. Anwendungen, bei denen Betriebsspannungen von mehr als 1500V angestrebt […]
CFP-5298
Compositions with transition metal doping at B-site of lithium nickel oxide (LNO) formulae LiNi1−xMxO2 (where M=Zr, Nb and Mo, 0≤x≤0.80) were synthesised via solid state route. Doping is used over past years to enhance the stability of a “stoichiometric LNO composition. This study reveals the impact of doping Zr+4, Nb5+ and Mo6+ impact on the […]